Locking device for the covers of impregnating tanks, etc.



Aug. 16, 1932. H. E. GOSCH 1,372,443

LOCKING DEVICE FOR THE COVERS OF IMPREGNATING TANKS, ETC

Filed May 5, 192a ZSheets-Sheet 1 H. E. GOSCH Aug. 16, 1932f LOCKING DEVICE FOR THE COVERS OF IMPREGNATING TANKS, ETC

Filed May 3, 1.928 2 Sheets-Sheet 2 efficient means for holdin the'basket of the draining mechanism. r

Patented Aug. 16, 1932 UNITED; STATES -HARRY E. GOSCH, OF NORTH TONiAWAN DA, INEW YORK, ASSIGNOB 7 TO CREO-DIPTf COMPANY INC OF NORTHTONAVJTANDA, NEW YORK, ACOR'IORATION OF YORK LOCKINGDEVICE FOB; THE-COVERS or IMPREGNATING TANKsfErc.

Application filed May 3;

This invention relates to an apparatus for staining or. impregnating shingles or the like with a paint. or similar.solutionnand more particularly to the means for fastening the cover to the tankholding the liquid inwhich the shingles are dipped.

It is the object of this invention to provide g the cover in place over the dipping .tank.

,- In the accompanying 1drawings Figure 1 is a fragmentary-vertical longi--- tudinal section of the impregnating orxdipping tanlnishowing: the same closed and a bundle of shingles supported by the dipping basket within the liquid stain or solution within the tank.

Figure 2 is a fragmentary vertical longitudinal section of the impregnating'tank the dippingbasket and associatedsparts, showing the manner of-t-ransferring an impregnate bundle of shingles from the dipping tank to Figure 3 is a horizontal":-section;s.on' an enlarged scale, taken on-:line 3 3 Fig. 1;

4- r Figures 4,5 and-6 are'fragmentary" vertical sections, on an enlarged scale,otaken on the ndation 42 of theibllil ding inwhich thisfappacorrespondingly numbered lines in Fig. 3.

In the following description;similar'characters of reference-indicate like parts in the i n; several views of the drawings Although the staining-,- coating or impregnating device may be rvariously.constructedas to its'details, a practicalembodiment of the same is shown inFigs; 16, :and asthere ii;- shown, this impregnating device is '-constructed as follows 1928. Serial Noam-783.

. :the s'olid (matter in-the liquid from precipi- 1 tating, insuring a uniform application of the coatlof. stain tothe bundles of shingles which are tobetr'eated thereby. For thispurpose an agitating device is provided which pref= erably -consists of a plurality of agitating disks 35 arranged in the lowermost part of wthe trough-shaped bottom of the impregnating tank and mounted on a-horizontal shaft 36 and arr trough. I p y In order to. insure proper penetration of the liquidstain into :the pores of the shingles or similar goods, this-liquid should be maintained- (at the proper temperature.- :Forzth A; purpose of enabling the-desired-temperature-to be maintained regardless of the-atmosipliericxtemperature on the exterior ofthetank. heatingmeans-are provided which preferably consist of a coil 39 having a plurality of loops arranged horizontally in the lowerpart' of mthe-impregnating tank on opposite sides of P the:agitator-andsupported on the innerside of tank. 1 1 This tankpreferably ranged within a Well 41 in the floor 0r-founlratus-is installed sothatthe upper end ofthe tank will be arranged at a suitable height to permit of conveniently introducing bundles of shingles into the upper end ofthe tankiand also removing the same therefrom.

, v Such introduction and-removal; of -the bundles of shingles is elfected-while the cover or head 34 oft-he impregnating tank is ele ivated a suitable distance above the upper or The numeral 30 represents the upright side inletend of the tank but when the bundles of wall or body of a tank which is adapted to receive the liquid stain 31 or other material with which bundles of shingles 32, or similar goods are to be stained, coated or impreg- 'nated.

This tank is preferably provided with downwardly dished or trough-shaped bottom 33 extending cross-wise of the tank and its upper end is adapted to be opened and closed by a vertically movablezcover 34.

I Inthe case of a liquidistain it is desirable: to agitate the same in orderto maintain it in a thoroughly. mixed cond1t1on-andiprevent-- :the tank this cover is lowered; upon the body anged' lengthwise of:=thishas its lower part ar shingles orl-other materials are 1-lowered;ji-nto of the tank and the joint between thesame is formed. on an annular ringASparried byj=an== 100 rods 52 which have their lower ends secured to brackets .53 projecting laterally from the upper part of the impregnating tank.

The weight of this tank cover and the parts associatedtherewith are preferably counterbalanced by a counterweight which is connected with one end of a counter-balancing line 56, the opposite end of this line being secured to one of the brackets 51 of the cover.

The raising and lowering of the cover is preferably effected by power and the means whereby-such raising and lowering is effected are preferably combined with means whereby thecover is automatically locked in its closed position when lowered upon the body of the tank and is automatically unlocked during the first part of the operation of the mechanism employed for raising the cover.

' The motor for thus raising and lowering the cover and also actuating this locking device preferably comprises'an upright hydraulic cylinder 59 which is mounted at its lower end on the overhead frame 54 and contains a vertically reciprocating piston 60 which'is connect-ed with a piston rod 61 passing through a stuffing box in'the'lower end of this cylinder and adapted to be raised and lowered by alternately admitting a liquid under pressure into the upper and lower ends of this cylinder and exhausting the same alternately therefrom.

The lower end of the piston rod 61 is attached to a central operating head 69, which 55 erally opening loops, each of which preferably consists of apair of lugs 73 projecting upwardly from a portion of the ring 48 and spaced apart so as to form a slot 74 therebetween, as shown in Fig. 2, a cross bar 75 arranged above the lug 7 3 and a pair of bolts 76 connecting opposite ends of the cross bar 7 75with the upper ends of the lug 73.

Arranged in an annular row above the cover 34 is a group of locking levers each of which cooperates at its inner end with the shifting head 69 and one of the locking loops of the tank. Each of these locking levers preferably comprises an outer section 77 adapted to engage its outer extremity be tween the slot 74 and cross bar 75 of one of the locking loops, and an inner section 78 arranged above the outer section 77 and connected by a pivot pin 79 with the adjacent part of the shifting head or hub 69. The outer part of each outer section 77 of this locking lever is guided on the upper marginal part of the cover in a guide loop consisting preferably of upper and lower cross bars 8081 and a pair of upright posts 82 connecting opposite ends of the cross bars 8081 with each other and with the adjacent part of the cover 34, as best shown in Fig.4.

The outer and inner sections 777 8 of each locking lever are preferably resiliently connected'with each other so that at times they practically form one integral or rigid lever but at other times are capable of yielding one relatively to the other so that each locking lever is capable of cooperating individually in the most effective manner with its companion locking loop 74-75 on the tank during the operation of locking and unlocking the cover thereof.

This yielding connection between the members 7778 of each locking lever is preferably effected by means of a horizontal pivot pin 83 passing through the inner part of each outer lever section 77 and a pair of lugs 84 depending from the central part of the companion inner lever section 78, and a pair of upright tension rods 85arranged on opposite sides of the lever sections 7778 and each passing with its central part through a guide eye 86 on the adjacent part of the inner lever section 78 and connected at its lower end with a laterally projecting bracket 87 on the adjacent part of the outer locking lever section 7 7, a cross bar 88 connecting the upper ends of the tension rods 85, and tension springs 89 each of which surrounds the upper part of one'of the tension rods 85 and bears at its upper and lower ends against the underside of the cross bar 88 and the guide eye 86 of the inner locking section 78 through the 7 medium of washers 9091.

When the tank cover is in its lowered position or closed position and the packing 46 thereof engages with the seat47 of the tank. the shifting head or hub 69 is in its lowered position and the sections 7778 of each locking lever are in a substantially horizontal position in which the overlying parts of these lever sections engage with each other in parallelism and are yieldingly held in this position by the springs 89. At this time the outer extremities of the lever sections 77 are also projected laterally outward beyond the guide loops 80, 81, 82 and into the locking loops 74,7 5 so as to engage with the undersides of the several cross bars 88 and thereby :loelathe cover in its. closed position against;

the-seaton the upper end of the; tank.

:This projectingpof thegoutersections. of

,the lockin'g'glevers with the locking loops on the seat of the tank. wDnring the initialapart of the. upward movement of) the shifting. head or hub 69 the same moves independently of the coveri 34 so as to incline the sectional locking levers looking loops on the tank, so that the'cover 34 is released and thereafter thexlatter can beraised from-the upper end of the tank, as

shown in Fig. 2.

If, during the last portion of the clownward movement of the shifting head 69, the

outer section 77 of one or more of the locking levers shouldreach the end of the locking movement before others, breakage of such levers is prevented by thecontinued downward movement of the shifting head 69 due to the elastic connection provided by the springs 89 between these lever sections 77, 7 8.

- A; similar deflection of the two sections 77,

78 of each locking lever occurs whenthe weight of the cover. 34 and the parts sus pended therefrom are raised by the hoisting mechanism, and causes the weight of these suspended parts to be distributeduniformly among these levers inasmuch as each of these levers by th1s means can-adapt itself to any slight inaccuracies in the fitting of the same to the partswith which thesame cooperates.

This flexed position of the inner and outer sections of the locking levers when lifting the cover of the impregnating tank is 'repre-' sented in Fig. 2, but a similar-relation ofthese lever sections occurs if some of the inner sections shouldbe pressed downwardly: farther thanthe corresponding sections of other levers during theroperation of closing the cover over the tank body.

In order to cause the outer sections ofthe locking levers to bear with substantial unlformity against the upper bars 75 forming parts of the locking loops on the tank body,

these bars may be raised or lowered by tightpurpose a carrier is provided on the underside ofthe cover, which-preferably has the-forum of :a basket and thisbasket in the preferred 7 construction, as shown in thedrawings, comprises two nprightelongitudinal. tightside 7 8 and causethe outer ends of the lever- 1nsmsection 77 to be first withdrawn from the" swa1ls.92-,-anda plurality of horizontal connectingrods '93 extending transversely across wtherspace between the upper and lower ends ofthese side walls and connected at their op- 74.7 5 on the tank occurs during the last portion of the downward movement-of the shifting head or hub 69'after the cover rests,

posite ends thereto; The upper ends ofv the sidewalls of this basket are pivotally connectedaboutmidway of their length to the underside of the cover 34 sothatgthisbasket is capable of swinging in a. verticalplane lengthwise of the apparatus, this. connection central parts of these walls 92 and passing .through brackets 95 which are secured to the underside of the tankcover 34, as best shown in Figs. 1 and Between the lower connecting; rods 93 ofthe basket, the latter is provided with a row of transverse rollers 96 whicharc adapted to engage with the underside of the bundles of shingles and "permit of more. easily moving .these bundles into and out of the basket.

The pivot pins 94 are preferably arranged somewhat in rear of the center of gravity of this bundle-receiving basket so that when free the basket will :tend to drop by; gravity under its own weight and that of the bundle of shingles therein, so that the open work or grate-like bottom. of the basket will incline .forwardlyto-ward the front-end of the basket.

This tilting movement is, however, limited by means of stops 97 arranged on the upper rear parts of the'basket side walls 92 and adapted toengage with the underside of the tank cover, as shown in Fig. 2. The bundle of shingles 32 or otherarticles to be'stained or impregnated is introduced by the operator intothe basket at therear end thereof, which is constantly open for this purpose.

iAfterione or more bundles of shingles have i been introduced into the basket from the rear end thereof, the latter is turned so that its bottom is arranged horizontally, in which last mentioned position the basket is lowered with its load of bundles of shingles into the treating, liquid within the tank. In order to hold the basket in this normal position, in which its'bottom is arranged horizontally, a

5 latching device is provided which in the present case includes two catches 98 adapted to engage with lugs 99 on the inner side of the upper front part of thebasket side-walls 92, and a rock shaft 100 carrying said catches 98 and pivotally mounted on the brackets 95.

the bottom of this basket into horizontal position these-noses will automatically trip past the catch lugs 99 on the basket and enge automatically with the underside thereof, as shown in Fig. 1, andthereby holdthe basket in its normalv operative position. l/Vhen it isdesired to release the basket so as to permit of depressing its front end and inclining the bottom thereof for the purpose of discharging the contents of the basket, this may be effected manually by theattendant who raises the catches 98 out of engage-' ment from the stop lugs 99 whereupon the basket will be free to drop at its front end and cause its bottom to incline forwardly, as shown in Fig. 2.

The discharge of the bundle from the base ket is effected from the front end thereof, which latter may be opened and closed by means of a. gate 104 which preferably consists of a plate of metal pivoted at its lower end by means of pins 105 to the side walls of thebasket so that this gate can either be raised intoits u right operative position across the front out st of the basket, as shown in Fig. 1, or the same can be swung forwardly and 3 downwardly into av position in which it is on a line with the bottom of'the basket, as shown in Fig. 2,preparatoryto dischargingthetreated bundle of shingles or other material from the basket of the impregnating device to the devices which subsequently operate upon the brindle'for draining the excess liquid attached thereto. I

Various means may be provided for bolding the outlet gate of the basket in its upright operative position but it is preferable to employ for this purpose the means which are shown in the drawings and which consist of a vertically swinging catch 106 pivoted at its rear end by means of a horizontal transverse pin 107 to one of the walls of the basket adjacent to the upper front corner thereof and engaging the nose at its front end' with the upper edge of the basket gate, as shown in Fig. 1'. 7 V

WVh'en the basket containing a load of shingles is lowered into the tank, the latter contains a batch of liquid stain or other fluid sufficient to cause the bundles of shingles to be submerged therein when the cover is closed. 7

After the basket has been thus lowered with its loadinto the batch of liquid stain within the tank and the cover has been securely fastened in place so as to form an air tight joint between the same and the body,

i a vacuum is produced within the tank so as when this impregnating pressure has been maintained for a sutlicient length of time to suit any particular requirement, this pressure is discontinued.

After the air pressure in the tank has been discontinued the cover 34 of the tank is unlocked and raised together with the bundles of shinglessupported in the basket thereof,

and this material is then discharged from the basket through the outlet at the front end thereof to a draining device, and a new batch of shingles or other material is introduced into the basket through the rear end thereof, and the front gate 104 is closed preparatory to again submerging the basket and its contents into the liquid stain within the impregnating tank in the manner previously described.

Pressure within the tank and the eXhaustion of a1r for creating a. vacuum therein ing with a stand pipe opening into the upper end of the tank.

The pressure pipe 112 contains a threeway valve 118 whereby the branch pipe 114 may be connected either with a pipe 119 leading to the atmosphere or wit-l1 the pressure pipe 112; and a threeway valve 120 is also arranged in the vacuum pipe 113 whereby the branch pipe 114 may be either connected with a pipe leading to the atmosphere or with the vacuum pipe 113.

After the cover of the tank has been raised to its highestposition with the basket on the underside thereof still in its normal upright position and carrying'a lot of shingles or like articles which have just been treated with the liquid in the tank, as shown in Fig. 1, the catch-es 98 on the cover are moved out of engagement from the catch lugs 99 on the side walls of the basket. lVhen this is done the basket is tilted forward by the preponderating weight in its front part together with the load therein until the stop 97 on the rear part thereof engages with the underside of the tank cover 34, as shown in Fig. 2.

After the basket has been thus tilted, the operator releases the catch 106 from the upper edge of the door 104 thereby permitting the latter to belowered from the upright positionshown in Fig. '1 to the forwardly inclined position shown in Fig. 2. When this is done the bundles of shingles or other articles may be moved forwardly out of the basket along the bottom thereof and the inner side of the inclined gate and discharged to a device whereby the excess of liquid stain or, similar fluid is removed from the shingles. The movement of the bundles of shingles or the like out of the basket at this time is fathe rollers 96 at the bottom of a basket and the comparatively free movement of the bundles over the gate 104 which is coated with the treating liquid and therefore acts somewhat in the nature of a lubricant which permits the bundles to slide easily over this gate.

After the bundle has been thus discharged from the basket of the clipping or impregnating device to the device which drains the excess of liquid from the bundles, the operator again lifts the gate 104 and locks the same in its upright operative position on the basket, and the latter is again turned into its normal upright position and held there by means of the catches 98 preparatory to receiving another charge of shingle bundles which are to be dipped into the liquid of the tank.

The draining device whereby the excess or surplus liquid is removed from the bundles of shingles is arranged close to the front side of the dipping or coating device so that the transfer of the shingle bundles may be effected directly from the dipping device to the draining device without the use of any intermediate conveying mechanism, thereby rendering the apparatus, as a whole, very compact and also facilitating the operation of staining the shingles and reducing the cost of production.

This draining device may be of any suitable construction and is indicated generally by the reference characters 128, 139 and 140 in Fig. 2 which form part-s of the rotary draining cage or basket.

It will be apparent from the foregoing description and illustrations that this apparatus permits of expeditiously and conveniently dipping bundles of shingles or like materials, in a liquid stain or other fluid with which the same are to be treated and then transferred and operated upon by the draining mechanism whereby the excess liquid is recovered, and that these operations are performed with a minimum amount of labor and expenditure of power and also without occupying an undue amount of space, thereby enabling work of this character to be performed very efliciently and economically.

I claim as my invention 1. An apparatus for the purpose described, comprising a tank adapted to contain liquid for treating articles and having an inlet at its top for the passage of said articles; a cover movable toward and from said inlet; and means for locking'said cover on said tank, comprising a plurality of abutments arranged on said tank around the inlet thereof, a vertically movable lifting head arranged above the cover, and a plurality of locking levers pivotally mounted on said cover and each connected at its inner end with said head and adapted to engage its outer end with one of said abutments, each of said levers consisting of a plurality of sections, and

means for yieldingly holding said sections together.

2. An apparatus for the purpose described, comprising a tank adapted to contain liquid for treating articles and having an inlet at its top for the passage of said articles; a cover movable toward and from said inlet; and means for locking said cover on said tank, comprising a plurality of abutments arranged on said tank around the inlet thereof, ,4

nature.

HARRY' E. GOSCH. 

